Updating a blob
Updating a blob - adult singles dating galesburg illinois
This tutorial helps you get started with PHP and Oracle Database by showing how to build a web application and by giving techniques for using PHP with Oracle.
Oracle manages the DRCP pool, shrinking it after a specified timeout. The rows with [email protected] (TNS V1-V3) correspond to a running Apache process holding a database connection open.
For PHP, Apache runs in a multi-process mode, spawning child processes each of which can handle one PHP script.
Depending how Apache allocated these processes to handle the "ab" requests, you may see a varying number of rows in .
-- drop trigger secure_employees; This section of the tutorial shows how to use the PHP OCI8 extension directly with Oracle Database.
Using the OCI8 extension directly gives programmers maximum control over application performance.
Session information (such as the default date format) might be retained between connection calls, giving performance benefits.
Session information will be discarded if a pooled server is later reused by a different application with its own connection class name. You see up to 40 connections with PHPHOL username, depending on how many Apache processes handled the 'ab' requests.
But the non-pooled script causes every single Apache process to open a separate connection to the database.
For larger sites, or where memory is limited, the overall benefits of DRCP are significant.
Committing each change individually causes extra load on the server.
In general you want all or none of your data committed.
It allows multiple Apache processes on multiple machines to share a small pool of database server processes. Scripts not doing any database work still hold onto a connection until the connection is closed and the server is terminated. Scripts can use database servers from a pool of servers and return them when no longer needed.